SPC Tornado Watch 661

WW 661 TORNADO ND SD 282140Z – 290400Z
WW 0661 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 661
NWS Storm Prediction Center Norman OK
440 PM CDT Wed Aug 28 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of South central North Dakota North central South Dakota * Effective this Wednesday afternoon and evening from 440 PM until 1100 PM CDT. * Primary threats include... A few tornadoes possible Scattered large hail and isolated very large hail events to 3 inches in diameter likely Scattered damaging wind gusts to 70 mph possible SUMMARY...Supercell development is expected soon near the central
North Dakota/South Dakota border, with additional storm development
in the next 1-3 hours farther north and south in the watch area. The storm environment initially favors supercells with tornadoes and
very large hail (up to 3 inches in diameter), while some clustering
of storms later this evening will lead to some increase in the
potential for damaging winds of 60-70 mph. The tornado watch area is approximately along and 60 statute miles
east and west of a line from 40 miles east northeast of Garrison ND
to 80 miles south southeast of Mobridge SD. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU1). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings. && AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 25015. ...Thompson 

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